Burner



March 21,- 1944. 2M 2,344,936

BURNER Filed June-16. 1941 2 Sheets-Sheet 1 John 63 ZIIIK,

INVENTOR Zh/v/ ATTORNFY March 21, 1944. J. a ZINK 2,344,936

BURNER Filed June 16, 1941 2 Sheets-Sheet 2 Jail/216221712? INVENTORATTORNEY Patented Mar. 21, 1944 UNITED STATES PATENT OFFICE BURNER JohnS. Zink, Tulsa, Okla.

Application June 16, 1941, Serial No. 398,225

3 Claims.

This invention relates to improvements in burners, and moreparticularly, but not by way of limitation, to improvements in burnersdis- .closed by applicants prior Patent No. 1,781,623, issued November11, 1930, and a patent to Edward W. Mooring, No. 1,513,260, issuedOctober 28, 1924. The present structure discloses a combination oil ,andgas burner. However, it will be apparent from the following descriptionthat it can be utilized as a gas burner per se.

Heretofore, in using burners of various types 'for still furnaces ofrefineries, domestic boilers, :and the like, difiiculty has been had inobtaining :a uniform temperature throughout the furnace,

especially uniformity of temperature in the ceiling of the furnacedirectly above the wall in which the burners are installed. In utilizinggas burners of the radiating arm typ it has been found that in order toprovide a shorter flame or heat pattern, the gas outlet jets weredisposed at an increased angle relative to the flow of air. However, inorder to obtain the shorter flame the fuel capacity or the heat releaseper burner was decreased as the angle of mixing was increased.Furthermore, the elimination of all the angularly disposed gas outletjets on one side of a radiating arm of a burner increased the capacityof the burner by changing the heat pattern into a long,

narrow, floating flame, but did not provide uniformity of thetemperature throughout the furnace.

It is therefore an important object of this invention to provide aburner adapted for use in domestic burners, furnaces, or any type ofheating plant for increasing the capacity of the furnace .by applying amore concentrated heat in a confined space.

; Another object of this invention is to provide a plural burnerstructure including a frame having passageways for burner elements, saidelements constructed to shorten or decrease the heat pattern or activecombustion zone and direct the heat .in a confined space in proximity tothe burner.

And still another object of this invention is to provide a burner ofsimple and inexpensive construction wherein a portion of the gas outletjets are eliminated in order to furnish a maximum heat capacity, whileat the same time precluding the escape of air through the burner outsideof the gaseous stream.

.Another object of this invention is to provide a burner which may beused for simultaneously burning oil and different types of gas or whichmay :burn a plurality of types of different gases when the oil is shutoff, and is further constructed to accommodate either natural or forceddraft used with cool or pre-heated air.

And an additional object of this invention is to provide a burner ofsuch construction so as to allow one side to be shut off in the event itbecomes over heated, such burner designed to pro vide a heat patterncapable of concentrating heat in a confined space in front of theburner. e

Other objects and advantages of the invention will be evident from thefollowing detailed description read in conjunction with the accompanyingdrawings which illustrate one form of the device. v

In the drawings:

Fig. 1 is a horizontal sectional view of the improved burner withcertain parts partly in elevation.

Fig. 2 is an elevation of the outlet or discharge end of the burnerpartly broken away and in section.

Fig. 3 is a detail view of the gas burner per se showing a modificationin the arrangement of the gas outlet ports.

Referring to the drawings in detail, reference character 2 designates aportion of a furnace wall having a doorway 4 which is partially lined bythe metal wall frame 6 of the present burner structure. The inlet meansof the frame 6 is flared as at 8 to facilitate the introduction ofsecondary air. .The frame as best shown in Fig. 2 is provided internallywith inwardly extending diametrically opposite ears i0 connected bybolts I2 to a spider 14 that has a number of openings extending there;-through for the slidable support of a pair of gas tubes l6 and an oiltubev [8. The discharge end portions ofthe gas tubes converge towardsone another as shown at 2B, and merge into a sectional burner head 22.The head (Fig. 2) consists of hollow upper and lower. sections 23 and 24respectively, provided with apertured cars 26 secured together by bolts28 (note Fig. 1). Each section of the head is provided with a number oiradiating arms 30 (preferably four, but not limited thereto) each ofwhich preferably tapers towards its end and is provided with oppositewalls 32 and 34 which converge toward the discharge end of the burner.The walls' are preferably disposed at an angle of 60 degrees with thefront face of an arm 39. The walls-are provided with a series ofapertures or ports 38. From an inspection of Fig. 2, it will be notedthat the wall 32 is provided with a larger number of ports 35 than wall34. In wall 32 the ports are successively spaced along the complete orwhole length of the arm. However, in wall-34 a lesser number of "f thesecondary air may pass through sue-n ports 36 (preferably two but notlimited thereto) is provided in proximity of the end of the arms 30. Itwill be apparent that the number of ports will depend on the size of theburner used.

Due to this arrangement the gas issuing from confronting ports of eachpair of arms will impinge in a position forwardly of the burning head.Furthermore, the elimination of part of ports in one of the oppositewalls has the effect of changing the heat .pattern or active combustionzone from a relatively long, narrow, floating fire to a short, bushy,broad one, thereby concentrating the flame or heat in a more confinedspace of the furnace and increased amounts of heat directly in front ofthe burner. more, in Fig. 2, in order to provide uniformity of theflame, it will be noted that the head 22 is constructed so that a wallof an arm having a decreased number of the gas outlet ports 36 is alwaysopposite the wall of a spaced arm that ineludes a greater'number-ofports36. The arrangement of the jets or ports '36 in the above mannerhas the effect of increasing the capacity of the furnace by applying amore concentrated heat over all the tubes '(not shown) oi the furnace.In utilizing the above structure in a combination oil and gas burner ora gas 'burner per se, it will be apparent that air is allowed to pass onboth sides of the ports 36, however, utilizing a limited number of portson one wall of the arms 33 nevertheless precludes the escape of air intothe furnace without passing through the gaseous stream or flame. Theconfinement of air in the active combustion zone or heat patternimproves the-capacity o'r efficiency of the flame.

Each of the sections of the head has a wall '38 (Fig. 2) extendingdiametrically across the burner head and provided at a medial portionwith a semi-circular port or recess -40. In assembling sections of thehead the recesses '43 of the two sections are disposed opposite oneanother and form an aperture 42 to accommodate the tube l8 supplying oilto the oil burner head 44. The oil head '44 ispositi'oned centrally ofthe gas burner head by'the threaded connection at 45 to tube F8 and isadjustable inwardly and outwardly so that the oil burner head '44 can bepositioned properly to receive secondary air which flows between thearms 30.

As best shown in Fig. 1, the gas and oil tubes i6 and 'I 8 respectivelymay be located in any p'osi- Further- 1 tion of adjustment by means ofscrews 46 which "The funnels admit primary air, the amounts of which areadjusted by the disc 58.

' Oil is introduced into the .tube i3 through a nipple 5i) and 'itmay bemixed with steam introduced into the tube 18 through apipe -6-i both ofthese parts being-arranged at the inlet of the tube 18. The mouth .8which admits the .sec- 'ondary air (in natural draft) is-controlled 'aplate 52 that is slidably .nrounted'on the tubes and I8. The plate 6? isprovided with :a -.linin plate having projections "t6 which contact withthe plate "62 for holding the main portion .of these plates in "spaced:reiation whereby .some

space and dissipate the heat. The plates 62 and 54 are held in assembledrelation by the bolts 68.

In Fig. 3 a modified disposition of the ports 36 is shown differing fromthat of Fig. 2 in that the reduction of the number of ports is shown ina wall opposite from that shown in Figure 2.

From the foregoing, it will be apparent that the invention is designedso that it may be simultaneously used for burning oil and gas, or may beutilized separately as either an oil burner or gas burner. Furthermore,the disposition of the gas outlet ports on the gas burner radiating armsis such that the heat pattern or flame is changed from a relatively longflame to a shorter and wider one having the effect of concentrating theheat in a more confined space in proximity to the burner, therebyincreasing the capacity of the furnace.

Changes may be made in the combination and arrangement of parts asheretofore set forth in the specification and shown in the drawings, itbeing understood that any modification in the precise embodiment of theinvention may be made within the scope of the following claims withoutdeparting from the spirit of the invention.

What I claim is:

l. A burner of the character described comprising a gas burner headprovided with a series of hollow arms radiating from the center of thehead, each arm formed with a pair of oppositely disposed inclined wallsconverging toward the discharge end of the burner, one wall of each of.said pairs being provided with a series of spaced discharge portsarranged lengthwise of and extending throughout the length of the arm,and the other wall of said pairs being provided with e. plurality ofspaced discharge ports arranged lengthwise of and extending throughoutapart of the arm near the end of the latter, the last mentioned inclinedwall being imperforate with the exception of said plurality of spaceddischarge ports, all-of said ports being of substantially uni-- .formsize and the ports in oppositely inclined walls positioned to cause gasjets discharged throughout to intersect .forwardly of said head.

2. A burner of the character described com- .prising a gas burner headprovided with a series of hollow arms radiating from the center of thehead, each arm formed with a pair of oppositely disposed inclined wallsconverging toward the discharge end .of the burner, one wall of each ofsaid pairs being provided :witha seriesof spaced discharge ports:arranged lengthwise of and exatending throughout the length of the arm,and the other wall of said pairs being provided with .a plurality ofspaced discharge ports arranged lengthwise of and extending throughout'a part .of the .arm near the :end of the latter, the last mentionedinclined wall ibeing imperforate with the exception of said.pluralityofzspaced discharge ports, all of .said ports being :ofsubstantially Euniform .size and the ports in oppositely inclined Lwallspositioned to :cause gas jets discharged throughout to intersectforwardly of said :head,

the .central portion of the head being provided with .an .aperture, an.oil burner head projecting through isaidaperture, and :means foruconducting oilstoithe oil burner head.

3. A burner of the character described coniprising va gas 'burner headprovided with .a.-series of hollow arms radiating zfrom the .center ofthe head, each .arm iormed :with a :pair of .oppnsiteiy disposedinclined walls iconverging toward dzhe discharge end of the burner,.onewall :of each :0!

said pairs being provided with a series of spaced discharge portsarranged lengthwise of and extending through the length of the arm, andthe other wall of said pairs being provided with a plurality of spaceddischarge ports arranged lengthwise of and extending throughout a partof the arm near the end of the latter, the last mentioned inclined wallbeing imperforate with the exception of said plurality of spaceddischarge ports, all of said ports being of substantially uniform sizeand the ports in oppositely inclined Walls positioned to cause gas jetsdischarged throughout to intersect forwardly of said head, said headincluding a plurality of sections, and a plurality of gas conveyingtubes for conducting gas to the respective sections.

JOHN S. ZINK.

